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Wang Y, Liu Y, Wang Y, Mai H, Chen Y, Zhang Y, Ji Y, Cong X, Gao Y. Clinical characteristics of outpatients with influenza-B-associated pneumonia and molecular evolution of influenza B virus in Beijing, China, during the 2021-2022 influenza season. Arch Virol 2024; 169:30. [PMID: 38233704 PMCID: PMC10794387 DOI: 10.1007/s00705-023-05957-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/28/2023] [Indexed: 01/19/2024]
Abstract
We analyzed the clinical characteristics of outpatients with influenza-B-associated pneumonia during the 2021-2022 influenza season and analyzed the molecular epidemiology and evolution of influenza B virus. The presence of influenza B virus was confirmed by reverse transcription polymerase chain reaction (RT-PCR). Electronic medical records were used to collect and analyze data of outpatients. The HA and NA genes were phylogenetically analyzed using ClustalW 2.10 and MEGA 11.0. Out of 1569 outpatients who tested positive for influenza B virus, 11.7% (184/1569) developed pneumonia, and of these, 19.0% (35/184) had underlying diseases. Fever, cough, and sore throat were the most common symptoms. Among the complications, acute respiratory distress syndrome (ARDS), acute kidney injury (AKI), and shock accounted for 2.7% (5/184), 4.9% (9/184), and 1.6% (3/184), respectively. Of the outpatients, 2.7% (5/184) were admitted to the hospital, and 0.5% (1/184) of them died. All of the strains from Beijing were identified as belonging to the B/Victoria lineage. The HA and NA gene sequences of 41 influenza B viruses showed high similarity to each other, and all of them belonged to clade 1A.3. Compared with the vaccine strain B/Washington/02/2019, all of the isolates contained N150K, G181E, and S194D mutations. S194D, E195K, and K200R mutations were detected in the 190 helix of the receptor binding region of HA. Co-mutations of H122Q, A127T, P144L, N150K, G181E, S194D, and K200R in HA and D53N, N59S, and G233E in NA were detected in 78.0% (32/41) of the isolates, and 56.3% (18/32) of these were from outpatients with influenza-B-associated pneumonia. Influenza outpatients with underlying diseases were more likely to develop pneumonia. No significant differences were observed in clinical symptoms or laboratory results between outpatients with and without pneumonia, so testing for influenza virus seems to be a good choice. The observed amino acid variations suggest that current vaccines might not provide effective protection.
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Affiliation(s)
- Yanxin Wang
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Yafen Liu
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Yue Wang
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Huan Mai
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Yuanyuan Chen
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Yifan Zhang
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China
| | - Ying Ji
- Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Xu Cong
- Peking University Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Yan Gao
- Department of Infectious Diseases, Peking University People's Hospital, Beijing, China.
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Pascua PNQ, Marathe BM, Bisen S, Webby RJ, Govorkova EA. Influenza B viruses from different genetic backgrounds are variably impaired by neuraminidase inhibitor resistance-associated substitutions. Antiviral Res 2019; 173:104669. [PMID: 31790712 DOI: 10.1016/j.antiviral.2019.104669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/26/2019] [Accepted: 11/28/2019] [Indexed: 01/23/2023]
Abstract
Identifying evolutionary routes to antiviral resistance among influenza viruses informs molecular-based resistance surveillance and clinical decisions. To improve antiviral management and understand whether clinically identified neuraminidase (NA) inhibitor (NAI) resistance-associated markers affect influenza B viruses of the Victoria- or Yamagata-lineages differentially, we generated a panel of NAI-resistant viruses (carrying E105K, G145E, R150K, D197N, I221 L/N/T/V, H273Y, N294S, or G407S substitutions; B numbering) in B/Brisbane/60/2008 (BR/08) and B/Phuket/3073/2013 (PH/13). In both backgrounds, I221 L/N/T/V resulted in reduced or highly reduced inhibition (HRI) by one to three currently available NAIs. D197N reduced inhibition by all NAIs in BR/08 but only by oseltamivir and peramivir in PH/13; R150K caused HRI by all NAIs in PH/13. Although PH/13 generally retained or enhanced NA activity in the presence of the substitutions, enzymatic activity in BR/08 was detrimentally affected. Similarly, substrate affinity and catalysis were relatively stable in PH/13, but not in the BR/08 variants. E105K, R150K, and D197N attenuated replication efficiency of BR/08 in vitro and in mice; only E105K had this effect in PH/13. Notably, the I221 L/N/T/V substitutions did not severely impair replication, particularly in PH/13. Overall, our data show differential effects of NA substitutions in representative Victoria- and Yamagata-lineage viruses, suggesting distinct evolution of these viruses caused variable fitness and NAI susceptibility profiles when similar key NA substitutions arise. Because the viruses harboring the I221 NA substitutions displayed undiminished fitness and are commonly reported, this position is likely to be the most clinically relevant marker for NAI resistance among contemporary influenza B viruses.
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Affiliation(s)
| | - Bindumadhav M Marathe
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shivantika Bisen
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Richard J Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Elena A Govorkova
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN, USA.
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Treurnicht FK, Buys A, Tempia S, Seleka M, Cohen AL, Walaza S, Glass AJ, Rossouw I, McAnerney J, Blumberg L, Cohen C, Venter M. Replacement of neuraminidase inhibitor-susceptible influenza A(H1N1) with resistant phenotype in 2008 and circulation of susceptible influenza A and B viruses during 2009-2013, South Africa. Influenza Other Respir Viruses 2018; 13:54-63. [PMID: 30218485 PMCID: PMC6304311 DOI: 10.1111/irv.12611] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 01/20/2023] Open
Abstract
Background Data on the susceptibility of influenza viruses from South Africa to neuraminidase inhibitors (NAIs) are scarce, and no extensive analysis was done. Objectives We aimed to determine oseltamivir and zanamivir susceptibility of influenza A and B virus neuraminidases (NAs), 2007‐2013, South Africa. Patients/Methods We enrolled participants through national influenza‐like illness surveillance, 2007‐2013. Influenza diagnosis was by virus isolation and quantitative polymerase chain reaction (qPCR). Drug susceptibility was determined by chemiluminescence‐based NA‐STAR/NA‐XTD assay. Sanger sequencing was used to determine molecular markers of NAI resistance. Results Forty percent (6341/15 985) of participants were positive for influenza viruses using virus isolation (2007‐2009) and qPCR (2009‐2013) methods. A total of 1236/6341 (19.5%) virus isolates were generated of which 307/1236 (25%) were tested for drug susceptibility. During 2007‐2008, the median 50% inhibitory concentration (IC50) of oseltamivir for seasonal influenza A(H1N1) increased from of 0.08 nmol/L (range 0.01‐3.60) in 2007 to 73 nmol/L (range 1.56‐305 nmol/L) in 2008. Influenza A isolates from 2009 to 2013 were susceptible to oseltamivir [A(H3N2) median IC50 = 0.05 nmol/L (range 0.01‐0.08); A(H1N1)pdm09 = 0.11 nmol/L (range 0.01‐0.78)] and zanamivir [A(H3N2) median IC50 = 0.56 nmol/L (range 0.47‐0.66); A(H1N1)pdm09 = 0.35 nmol/L (range 0.27‐0.533)]. Influenza B viruses were susceptible to both NAIs. NAI resistance‐associated substitutions H275Y, E119V, and R150K (N1 numbering) were not detected in influenza A viruses that circulated in 2009‐2013. Conclusions We confirm replacement of NAI susceptible by resistant phenotype influenza A(H1N1) in 2008. Influenza A and B viruses (2009‐2013) remained susceptible to NAIs; therefore, these drugs are useful for treating influenza‐infected patients.
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Affiliation(s)
- Florette K Treurnicht
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Amelia Buys
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Stefano Tempia
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia.,Influenza Program, Centers for Disease Control and Prevention, Pretoria, South Africa
| | - Mpho Seleka
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Adam L Cohen
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia.,Department of Immunization, Vaccines and Biologicals, Global Immunization Monitoring and Surveillance, Expanded Programme on Immunization, World Health Organization, Geneva, Switzerland
| | - Sibongile Walaza
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa.,Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Allison J Glass
- Department of Molecular Pathology, Lancet Laboratories, Johannesburg, South Africa
| | - Inéz Rossouw
- PathCare Laboratories, PathCare Park, Cape Town, South Africa
| | - Johanna McAnerney
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa
| | - Lucille Blumberg
- Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa.,Division of Public Health Surveillance and Response, National Institute of Communicable Diseases, Johannesburg, South Africa
| | - Cheryl Cohen
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa.,Faculty of Health Sciences, School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Marietjie Venter
- Department of Medical Virology, Emerging Arbo-and Respiratory Virus Program, University of Pretoria, Pretoria, South Africa.,Tshwane Academic Division, National Health Laboratory Service, Pretoria, South Africa
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Lackenby A, Besselaar TG, Daniels RS, Fry A, Gregory V, Gubareva LV, Huang W, Hurt AC, Leang SK, Lee RTC, Lo J, Lollis L, Maurer-Stroh S, Odagiri T, Pereyaslov D, Takashita E, Wang D, Zhang W, Meijer A. Global update on the susceptibility of human influenza viruses to neuraminidase inhibitors and status of novel antivirals, 2016-2017. Antiviral Res 2018; 157:38-46. [PMID: 29981793 PMCID: PMC6094047 DOI: 10.1016/j.antiviral.2018.07.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/18/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022]
Abstract
A total of 13672 viruses, collected by World Health Organization recognised National Influenza Centres between May 2016 and May 2017, were assessed for neuraminidase inhibitor susceptibility by four WHO Collaborating Centres for Reference and Research on Influenza and one WHO Collaborating Centre for the Surveillance Epidemiology and Control of Influenza. The 50% inhibitory concentration (IC50) was determined for oseltamivir and zanamivir for all viruses, and for peramivir and laninamivir in a subset (n = 8457). Of the viruses tested, 94% were obtained from the Western Pacific, Americas and European WHO regions, while limited viruses were available from the Eastern Mediterranean, African and South East Asian regions. Reduced inhibition (RI) by one or more neuraminidase inhibitor was exhibited by 0.2% of viruses tested (n = 32). The frequency of viruses with RI has remained low since this global analysis began (2015/16: 0.8%, 2014/15: 0.5%; 2013/14: 1.9%; 2012/13: 0.6%) but 2016/17 has the lowest frequency observed to date. Analysis of 13581 neuraminidase sequences retrieved from public databases, of which 5243 sequences were from viruses not included in the phenotypic analyses, identified 58 further viruses (29 without phenotypic analyses) with amino acid substitutions associated with RI by at least one neuraminidase inhibitor. Bringing the total proportion to 0.5% (90/18915). This 2016/17 analysis demonstrates that neuraminidase inhibitors remain suitable for treatment and prophylaxis of influenza virus infections, but continued monitoring is important. An expansion of surveillance testing is paramount since several novel influenza antivirals are in late stage clinical trials with some resistance already having been identified.
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Affiliation(s)
- Angie Lackenby
- National Infection Service, Public Health England, London, NW9 5HT, United Kingdom.
| | - Terry G Besselaar
- Global Influenza Programme, World Health Organization, Avenue Appia 20, 1211, Geneva 27, Switzerland
| | - Rod S Daniels
- The Francis Crick Institute, Worldwide Influenza Centre (WIC), WHO Collaborating Centre for Reference and Research on Influenza, 1 Midland Road, London, NW1 1AT, United Kingdom
| | - Alicia Fry
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Diseases Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, USA
| | - Vicki Gregory
- The Francis Crick Institute, Worldwide Influenza Centre (WIC), WHO Collaborating Centre for Reference and Research on Influenza, 1 Midland Road, London, NW1 1AT, United Kingdom
| | - Larisa V Gubareva
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Diseases Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, USA
| | - Weijuan Huang
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Aeron C Hurt
- WHO Collaborating Centre for Reference and Research on Influenza, At the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Sook-Kwan Leang
- WHO Collaborating Centre for Reference and Research on Influenza, At the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Raphael T C Lee
- Bioinformatics Institute, Agency for Science, Technology and Research, 30 Biopolis Street, #07-01, Matrix, Singapore, 138671, Singapore
| | - Janice Lo
- Public Health Laboratory Centre, Centre for Health Protection, Department of Health, 382 Nam Cheong Street, Hong Kong, China
| | - Lori Lollis
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Diseases Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, USA
| | - Sebastian Maurer-Stroh
- Bioinformatics Institute, Agency for Science, Technology and Research, 30 Biopolis Street, #07-01, Matrix, Singapore, 138671, Singapore; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore, 117543, Singapore; National Public Health Laboratory, Ministry of Health, 3 Biopolis Drive, Synapse #05-14 to 16, Singapore, 138623, Singapore
| | - Takato Odagiri
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashimurayama, Tokyo, 208-0011, Japan
| | - Dmitriy Pereyaslov
- Division of Communicable Diseases, Health Security, & Environment, World Health Organization Regional Office for Europe, UN City, Marmorvej 51, DK-2100, Copenhagen Ø, Denmark
| | - Emi Takashita
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashimurayama, Tokyo, 208-0011, Japan
| | - Dayan Wang
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute for Viral Disease Control and Prevention, China CDC, Beijing, China
| | - Wenqing Zhang
- Global Influenza Programme, World Health Organization, Avenue Appia 20, 1211, Geneva 27, Switzerland
| | - Adam Meijer
- National Institute for Public Health and the Environment, PO Box 1, 3720 BA, Bilthoven, The Netherlands
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5
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Gubareva LV, Besselaar TG, Daniels RS, Fry A, Gregory V, Huang W, Hurt AC, Jorquera PA, Lackenby A, Leang SK, Lo J, Pereyaslov D, Rebelo-de-Andrade H, Siqueira MM, Takashita E, Odagiri T, Wang D, Zhang W, Meijer A. Global update on the susceptibility of human influenza viruses to neuraminidase inhibitors, 2015-2016. Antiviral Res 2017; 146:12-20. [PMID: 28802866 PMCID: PMC5667636 DOI: 10.1016/j.antiviral.2017.08.004] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/25/2017] [Accepted: 08/08/2017] [Indexed: 01/26/2023]
Abstract
Four World Health Organization (WHO) Collaborating Centres for Reference and Research on Influenza and one WHO Collaborating Centre for the Surveillance, Epidemiology and Control of Influenza (WHO CCs) assessed antiviral susceptibility of 14,330 influenza A and B viruses collected by WHO-recognized National Influenza Centres (NICs) between May 2015 and May 2016. Neuraminidase (NA) inhibition assay was used to determine 50% inhibitory concentration (IC50) data for NA inhibitors (NAIs) oseltamivir, zanamivir, peramivir and laninamivir. Furthermore, NA sequences from 13,484 influenza viruses were retrieved from public sequence databases and screened for amino acid substitutions (AAS) associated with reduced inhibition (RI) or highly reduced inhibition (HRI) by NAIs. Of the viruses tested by WHO CCs 93% were from three WHO regions: Western Pacific, the Americas and Europe. Approximately 0.8% (n = 113) exhibited either RI or HRI by at least one of four NAIs. As in previous seasons, the most common NA AAS was H275Y in A(H1N1)pdm09 viruses, which confers HRI by oseltamivir and peramivir. Two A(H1N1)pdm09 viruses carried a rare NA AAS, S247R, shown in this study to confer RI/HRI by the four NAIs. The overall frequency of A(H1N1)pdm09 viruses containing NA AAS associated with RI/HRI was approximately 1.8% (125/6915), which is slightly higher than in the previous 2014-15 season (0.5%). Three B/Victoria-lineage viruses contained a new AAS, NA H134N, which conferred HRI by zanamivir and laninamivir, and borderline HRI by peramivir. A single B/Victoria-lineage virus harboured NA G104E, which was associated with HRI by all four NAIs. The overall frequency of RI/HRI phenotype among type B viruses was approximately 0.6% (43/7677), which is lower than that in the previous season. Overall, the vast majority (>99%) of the viruses tested by WHO CCs were susceptible to all four NAIs, showing normal inhibition (NI). Hence, NAIs remain the recommended antivirals for treatment of influenza virus infections. Nevertheless, our data indicate that it is prudent to continue drug susceptibility monitoring using both NAI assay and sequence analysis. A total of 14,330 influenza viruses were collected worldwide, May 2015–May 2016. Approximately 0.8% showed reduced inhibition by at least one NA inhibitor. The frequency of viruses with reduced inhibition was slightly higher than in 2014–15 (0.5%). NA inhibitors remain an appropriate choice for influenza treatment. Global surveillance of influenza antiviral susceptibility should be continued.
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Affiliation(s)
- Larisa V Gubareva
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, United States.
| | - Terry G Besselaar
- Global Influenza Programme, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
| | - Rod S Daniels
- The Francis Crick Institute, Worldwide Influenza Centre (WIC), WHO Collaborating Centre for Reference and Research on Influenza, 1 Midland Road, London, NW1 1AT, United Kingdom
| | - Alicia Fry
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, United States
| | - Vicki Gregory
- The Francis Crick Institute, Worldwide Influenza Centre (WIC), WHO Collaborating Centre for Reference and Research on Influenza, 1 Midland Road, London, NW1 1AT, United Kingdom
| | - Weijuan Huang
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute for Viral Disease Control and Prevention, Collaboration Innovation Centre for Diagnosis and Treatment of Infectious Diseases, China CDC, Beijing, China
| | - Aeron C Hurt
- WHO Collaborating Centre for Reference and Research on Influenza, At the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia; Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Patricia A Jorquera
- WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention (CDC), 1600 Clifton RD NE, MS-G16, Atlanta, GA, 30329, United States
| | - Angie Lackenby
- National Infection Service, Public Health England, London, NW9 5HT, United Kingdom
| | - Sook-Kwan Leang
- WHO Collaborating Centre for Reference and Research on Influenza, At the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, 3000, Australia
| | - Janice Lo
- Public Health Laboratory Centre, 382 Nam Cheong Street, Hong Kong, China
| | - Dmitriy Pereyaslov
- Division of Health Emergencies and Communicable Diseases, World Health Organization Regional Office for Europe, UN City, Marmorvej 51, DK-2100, Copenhagen, Denmark
| | - Helena Rebelo-de-Andrade
- Influenza Pathogenesis and Antiviral Resistance Laboratory, National Institute of Health, Av. Padre Cruz, 1649-016, Lisboa, Portugal; Faculdade de Farmácia, Universidade de Lisboa, Av. Prof Gama Pinto, 1649-016, Lisboa, Portugal
| | - Marilda M Siqueira
- National Influenza Center, Laboratorio de Virus Respiratorios, Oswaldo Cruz Institute/FIOCRUZ, Rio de Janeiro, Brazil
| | - Emi Takashita
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashimurayama, Tokyo, 208-0011, Japan
| | - Takato Odagiri
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashimurayama, Tokyo, 208-0011, Japan
| | - Dayan Wang
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute for Viral Disease Control and Prevention, Collaboration Innovation Centre for Diagnosis and Treatment of Infectious Diseases, China CDC, Beijing, China
| | - Wenqing Zhang
- Global Influenza Programme, World Health Organization, Avenue Appia 20, 1211 Geneva 27, Switzerland
| | - Adam Meijer
- National Institute for Public Health and the Environment, PO Box 1, 3720 BA, Bilthoven, The Netherlands
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6
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Ikematsu H, Kawai N, Iwaki N, Kashiwagi S. In vitro neuraminidase inhibitory concentration (IC50) of four neuraminidase inhibitors against clinical isolates of the influenza viruses circulating in the 2010–2011 to 2014–2015 Japanese influenza seasons. J Infect Chemother 2016; 22:599-604. [DOI: 10.1016/j.jiac.2016.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 05/17/2016] [Accepted: 06/01/2016] [Indexed: 11/25/2022]
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7
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Farrukee R, Leang SK, Butler J, Lee RTC, Maurer-Stroh S, Tilmanis D, Sullivan S, Mosse J, Barr IG, Hurt AC. Influenza viruses with B/Yamagata- and B/Victoria-like neuraminidases are differentially affected by mutations that alter antiviral susceptibility. J Antimicrob Chemother 2015; 70:2004-12. [PMID: 25786478 DOI: 10.1093/jac/dkv065] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 02/19/2015] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The burden of disease due to influenza B is often underestimated. Clinical studies have shown that oseltamivir, a widely used neuraminidase inhibitor (NAI) antiviral drug, may have reduced effectiveness against influenza B viruses. Therefore, it is important to study the effect of neuraminidase mutations in influenza B viruses that may further reduce NAI susceptibility, and to determine whether these mutations have the same effect in the two lineages of influenza B viruses that are currently circulating (B/Yamagata-like and B/Victoria-like). METHODS We characterized the effect of 16 amino acid substitutions across five framework residues and four monomeric interface residues on the susceptibility to four different NAIs (oseltamivir, zanamivir, peramivir and laninamivir). RESULTS Framework residue mutations E117A and E117G conferred highly reduced inhibition to three of the four NAIs, but substantially reduced neuraminidase activity, whereas other framework mutations retained a greater level of NA activity. Mutations E105K, P139S and G140R of the monomeric interface were also found to cause highly reduced inhibition, but, interestingly, their effect was substantially greater in a B/Victoria-like neuraminidase than in a B/Yamagata-like neuraminidase, with some susceptibility values being up to 1000-fold different between lineages. CONCLUSIONS The frequency and the effect of key neuraminidase mutations on neuraminidase activity and NAI susceptibility can differ substantially between the two influenza B lineages. Therefore, future surveillance, analysis and interpretation of influenza B virus NAI susceptibility should consider the B lineage of the neuraminidase in the same manner as already occurs for different influenza A neuraminidase subtypes.
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Affiliation(s)
- Rubaiyea Farrukee
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia Monash University, School of Applied Sciences and Engineering, Churchill, VIC, Australia
| | - Sook-Kwan Leang
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia
| | - Jeff Butler
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia
| | - Raphael T C Lee
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Sebastian Maurer-Stroh
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore National Public Health Laboratory, Communicable Diseases Division Ministry of Health, Singapore School of Biological Sciences, Nanyang Technological University, Singapore
| | - Danielle Tilmanis
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia
| | - Sheena Sullivan
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia
| | - Jennifer Mosse
- Monash University, School of Applied Sciences and Engineering, Churchill, VIC, Australia
| | - Ian G Barr
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia
| | - Aeron C Hurt
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, VIC, Australia Melbourne School of Population and Global Health, University of Melbourne, VIC, Australia
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